Inlet Air Cooling SOAPP-CT Technology Module

BACKGROUND

Summer temperatures of 95慚 are not uncommon in many parts of the world where combustion turbines operate. At this temperature, a combustion turbine's engine can be penalized from 15% to 18% in rated output capacity. It is at high temperatures when power output becomes most important. Precooling is used with combustion turbines to increase the density of inlet air. The increase in air density results in an increase in the air mass flow rate through the combustion turbine, and improves the combustion turbine's pressure ratio which boosts turbine efficiency. This module addresses commercially viable combustion turbine inlet air precooling technologies.

SCOPE

The SOAPP-CT Technology Module on Inlet Air Cooling includes technical reference information plus interactive conceptual design models for each of the following combustion turbine inlet air precooling technologies:

evaporative coolers

heat recovery absorption chillers

steam absorption chillers

mechanical chillers

ammonia-liquid overfeed system

The module includes discussions on basic principles and the major components of combustion turbine inlet air precooling systems. More detailed information on each technology, including unique processes, components, and supporting systems, is also included in this module.

Technology performance; equipment sizing; capital, O&M, and differential fuel costs; and construction schedules are modeled for the combustion turbine inlet air precooling system technologies as a function of the following sensitivities:

combustion turbine model selection

number of combustion turbines

cycle type

fuel selection

secondary fuel usage factor

combustion turbine NO_x control method

combustion turbine NO_x emission limit

maximum ambient dry bulb temperature

ambient wet bulb temperature

site elevation

Economic analyses are based on a static set of standard economic parameters when this module is used as a separate program. When this module is launched from within the SOAPP-CT WorkStation, up to 42 project-specific economic parameters are automatically imported into the module for the user's selected project. Included in these economic inputs are fuel cost, escalation rate, tax rate, capital structure, and contingencies. Default values for all module sensitivity parameters are also set from the values stored in user's selected project when this module is launched from within the SOAPP-CT WorkStation.

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	SOAPP-CT Technology Modules Inlet Air Precooling
	The SOAPP-CT Technology Module on Inlet Air Cooling is an interactive, multimedia reference and evaluation tool for application of these systems in combustion turbine power plants. You can quickly make informed decisions by varying key sensitivity parameters and comparing the change in performance data, equipment sizes, capital costs, O&M costs, and construction schedule for each technology alternative. BACKGROUND Summer temperatures of 95慚 are not uncommon in many parts of the world where combustion turbines operate. At this temperature, a combustion turbine's engine can be penalized from 15% to 18% in rated output capacity. It is at high temperatures when power output becomes most important. Precooling is used with combustion turbines to increase the density of inlet air. The increase in air density results in an increase in the air mass flow rate through the combustion turbine, and improves the combustion turbine's pressure ratio which boosts turbine efficiency. This module addresses commercially viable combustion turbine inlet air precooling technologies.
			SCOPE The SOAPP-CT Technology Module on Inlet Air Cooling includes technical reference information plus interactive conceptual design models for each of the following combustion turbine inlet air precooling technologies: evaporative coolers heat recovery absorption chillers steam absorption chillers mechanical chillers ammonia-liquid overfeed system The module includes discussions on basic principles and the major components of combustion turbine inlet air precooling systems. More detailed information on each technology, including unique processes, components, and supporting systems, is also included in this module. Technology performance; equipment sizing; capital, O&M, and differential fuel costs; and construction schedules are modeled for the combustion turbine inlet air precooling system technologies as a function of the following sensitivities: combustion turbine model selection number of combustion turbines cycle type fuel selection secondary fuel usage factor combustion turbine NO_x control method combustion turbine NO_x emission limit maximum ambient dry bulb temperature ambient wet bulb temperature site elevation Economic analyses are based on a static set of standard economic parameters when this module is used as a separate program. When this module is launched from within the SOAPP-CT WorkStation, up to 42 project-specific economic parameters are automatically imported into the module for the user's selected project. Included in these economic inputs are fuel cost, escalation rate, tax rate, capital structure, and contingencies. Default values for all module sensitivity parameters are also set from the values stored in user's selected project when this module is launched from within the SOAPP-CT WorkStation.

	A database of contemporary, representative worldwide experience is also included in this module for each technology.



	Last modified: Friday, July 19, 2002

SOAPP-CT Technology Modules

Inlet Air Precooling

BACKGROUND

SCOPE